Operability is the relative ease or difficulty of managing or harvesting timber because of physical conditions in the stand or on the site. Using data collected during standard statewide forest inventories, we developed a method for classifying timber by operability class based on seven operability components.

This article reports on the development of accelerated laboratory methods to allow estimation of preservative leaching frompressure-treated wood exposed to precipitation. End-matched lumber specimens were pressure-treated with a boron?copper formulation and exposed to natural weathering for 1 yr, laboratory immersion protocols, or a laboratory-simulated rainfall...

Methods for calculating tree biomass are outlined, and the biomass on commercial forest land is estimated for 11 north-central states. Tree biomass in the North Central Region totals 3.6 billion tons, or 50 tons per commercial forest acre. For all species, total tree biomass is concentrated in growing-stock boles.

Estimating marten (Martes spp.) survival rates in managed forests is important for comparisons with vital rates in unmanaged forests, and data across populations in different forest types are needed in meta-analyses. We estimated survival rates of a Pacific Marten (Martes caurina) population from 1993 to 1998. This population...

Measuring cultural diversity in recreation has become an important topic because of the increasing coverage of and interest in ethnicity and cross-cultural aspects of recreation. Introducing theories and methods from established disciplines other than leisure studies/recreation and park studies is necessary to understand this important issue. In this article, we first...

Current standardized methods are not well-suited for estimating in-service preservative leaching from treated wood products. This study compared several alternative leaching methods to a commonly used standard method, and to leaching under natural exposure conditions. Small blocks or lumber specimens were pressure treated with a wood preservative containing borax and...

We evaluated the effect of forest riparian alternative tree buffer designs on Western Red-backed Salamanders (Plethodon vehiculum) along headwater stream banks in managed forests of the Washington Coast Range. We used pit trap live removals in early autumn to estimate relative abundances of surface-active salamanders before and after 3 levels of riparian buffer...

We assessed the short-term effects of alternative designs of forested buffer treatments along headwater streams on small ground-dwelling mammals in managed forests in western Washington, USA. Over three summers (one pretreatment and two posttreatment), we trapped 19 mammalian species along 23 streams in the northern Coast Range. We compared faunal communities in...